PORTER-CABLE PC186CS 18-Volt Cordless 6-1/2-Inch Circular-Saw Bare-Tool (Tool Only, No Battery) 6-1/2-inch blade allows cutting of 2-inch lumber at a 45-degree bevel (1 blade included) Operates at 3,700 RPM, powering blade cutting tip at 9,950 feet per minute Cordless for convenience and ease of use. Spindle lock allows for single wrench bit changes Batteries and charger sold separately 6-1/2-inch circular saw provides more efficient cutting and greater cutting capacity